Davidson, IEB, p. 78 (Dharmaśreṣṭhī). Name inscribed on a rock in Gilgit.
See Bart Dessein. Dharmas Associated with Awarenesses and the Dating of Sarvāstivāda Abhidharma Works, Asiatische Studien, vol. 50, no. 3 (1996), pp. 623-651, at p. 645.
Liebenthal, Biography, p. 286. Some sources give his name as Dharmajina, Dharmottara, Dharmaśrī (the differences evidently resulting from problems in the re-Sanskritization).
By the way, the term 'Dharma Merchant' (chos kyi tshong dpon) is used in a positive way in a poetic passage in Thuken, p. 445.
Bibliography:
*Abhidharmahṛdaya.
See under Abhidharmasāra (a different Sanskritization of the same Chinese title).
Bart Dessein, Sautrāntika and the Hṛdaya Treatises, Journal of the International Association of Buddhist Studies, vol. 26, no. 2 (2003), pp. 287-319. Translated into Chinese by Saṅghadeva. Author, aka Dharmaśrī, was a Tokharian from Bactria.
Vinayastotra ('Dul ba la bstod pa). Tôh. no. 4136. Dergé Tanjur, vol. SU, folios 133r.2-134r.5. Tr. by Jinamitra and Klu'i rgyal mtshan. A commentary follows it.